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Sierra Chapter hosted the 51st Annual WRS in 2022

Our theme "Reconnecting, Adapting, Overcoming" was woven throughout the event. Peruse presentations from the Symposium below.

Sierra Chapter once again hosted the WRS at Tenaya Lodge at Yosemite. The Symposium was complete with a Monday tour of the Yosemite Valley to discuss programs at Yosemite National Park as presented by staff at the Yosemite Conservatory and Mariposa County Public Works. The exhibit hall was sold out and Technical Sessions were held Tuesday through Thursday with the Keynote Address from SWANA Executive Director & CEO, David Biderman, over breakfast on Tuesday morning. The fun was had on Wednesday evening with dinner followed by a party in the Pavillion. View Technical Sessions - Topics and Presenters | View ALL WRS Conference Documents 


Speaker Presentations

The Sierra Chapter WRS Committee reviewed nearly 50 abstracts to select dynamic and timely topics. The program was packed with valuable information for professionals working in all areas of Solid Waste.

If you weren't so fortunate as to be able to attend this year's event, you might want to take a look at the conference information and speaker presentations.

*Please note, there were several last minute changes so the presentations may not all align precisely with the program time and date but files are saved with track number, general topic, key words from the title, and the speaker's last name to help you locate what you're looking for!



Exhibitor Information

The exhibit hall SOLD OUT for this event! The Exhibitor Layout is provided to show where vendors were located. Contact Curtis Larkin at or Dan Amann at with any questions or to be on the list for next year!


Sponsors ​



Caglia Environmental

Merced County Regional Waste Management Authority



Geosyntec Consultants

Additional Symposium Sponsors include:

Jacobs (lanyards) and 

Riley's Brewing Company (reception libations)

Our sponsors helped make the Symposium the great event that it was! Please consider sponsorship at a future Symposium. The support makes a difference!


 We are the Central California Chapter of the Solid Waste Association of North America. Our members serve communities stretching from the Pacific Ocean to the Sierra Nevada Mountains by providing everyday solutions to solid waste issues through effective resource management.

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